Portable protective shell with expansion screen

Abstract

The invention relates to the technical field of portable protective shells, and discloses a portable protective shell with an expansion screen, which comprises a fixed box, and the fixed box is provided with a plurality of clamping mechanisms, two anti-reversal mechanisms and two limiting mechanisms; an electronic product is fixedly connected to the front face of the fixing box, the clamping mechanism comprises a second fixing plate arranged in the fixing box, a rack is slidably connected to the second fixing plate, the anti-reverse-rotation mechanism comprises a second rotating shaft rotationally connected to the second fixing plate, the second rotating shaft penetrates through the second fixing plate, and the rack is slidably connected to the second rotating shaft. Two gears are fixedly connected to the outer wall of the second rotating shaft. By arranging the clamping mechanism, the problems that the expansion screen is inconvenient to fix, and in daily use, if equipment shakes slightly or is subjected to slight external force, if the equipment is placed on a table top and is touched accidentally, enough friction force and constraining force are difficult to provide through a simple fixing mode, so that the expansion screen shakes or loosens, and the expansion screen cannot be fixed easily are solved. And the damage of the expansion screen can be greatly caused.

Description

Technical Field

[0001] The present invention relates to the technical field of portable protective cases, and in particular to a portable protective case with an extended screen. Background Art

[0002] With the continuous advancement of technology, mobile devices such as smartphones and tablets have become indispensable tools in people's lives and work. People have higher and higher requirements on the performance and functions of mobile devices. They not only hope that they have powerful processing capabilities and high-definition display effects, but also hope that they can meet diverse usage needs in different scenarios.

[0003] However, the existing portable protective case with an expanded screen is not convenient for fixing the expanded screen during use. In daily use, if the device shakes slightly or is subjected to slight external force, such as being accidentally hit when placed on a desktop, the simple fixing method will be difficult to provide sufficient friction and restraint force, causing the expanded screen to shake or loosen, which is very likely to cause damage to the expanded screen. Summary of the invention

[0004] The purpose of the present invention is to provide a portable protective case with an expanded screen. By setting a clamping mechanism, the problem of inconvenience in fixing the expanded screen is solved. During daily use, if the device shakes slightly or is subjected to slight external force, such as being accidentally hit when placed on a desktop, a simple fixing method will be difficult to provide sufficient friction and restraint force, causing the expanded screen to shake or loosen, which is very likely to cause damage to the expanded screen.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a portable protective case with an extended screen, comprising a fixing box, on which a plurality of clamping mechanisms, two anti-reversal mechanisms and two limiting mechanisms are arranged;

[0007] The front side of the fixing box is fixedly connected to an electronic product, the clamping mechanism includes a fixing plate 2 arranged in the fixing box, a rack is slidably connected to the fixing plate 2, the anti-reversal mechanism includes a rotating shaft 2 rotatably connected to the fixing plate 2, the rotating shaft 2 penetrates the fixing plate 2, two gears are fixedly connected to the outer wall of the rotating shaft 2, the two gears are respectively hinged to two corresponding racks, and the limiting mechanism includes a slide groove opened on the electronic product, a slider is slidably connected in the slide groove.

[0008] Furthermore, a hinge rod 1 is fixedly connected to the bottom of the rack, and two clamps are slidably connected to the fixing plate 2.

[0009] Furthermore, two rotating shafts 1 are fixedly connected to the fixed plate 2, and the outer walls of the two rotating shafts 1 are rotatably connected with half gears.

[0010] Furthermore, the left and right sides of the hinged rod 1 are both hingedly provided with hinged rods 2, the outer walls of the two half gears are fixedly connected with hinge blocks, and the two hinged rods 2 are hingedly connected to the two hinge blocks respectively.

[0011] Furthermore, a worm is rotatably connected to the second fixing plate, a worm wheel is fixedly connected to the outer wall of the second rotating shaft, the worm is meshed with the worm wheel, and a handle is fixedly connected to the right side of the worm.

[0012] Furthermore, a fixing plate 1 is fixedly connected to the top of the sliding block, the fixing plate 1 is fixedly connected to a fixing plate 2, and a sliding rod is fixedly connected to the inner wall of the fixing box.

[0013] Furthermore, a slide plate is slidably connected to the outer wall of the slide rod, a spring 1 is sleeved on the outer wall of the slide rod, the right side of the spring 1 is fixedly connected to the slide plate, and the left side of the spring 1 is fixedly connected to the fixing box.

[0014] Furthermore, a semicircular block 1 is fixedly connected to the right side of the slide rod, a semicircular block 2 is slidably connected to the outer wall of the slide rod, the semicircular block 2 is in contact with the semicircular block 1, and two fixed shells are fixedly connected to the left side of the fixed plate 1.

[0015] Furthermore, the inner walls of the two fixed shells are slidably connected to the limiting blocks, and springs 2 are arranged in the two fixed shells. The sides of the two springs 2 that are close to each other are fixedly connected to the two limiting blocks respectively, and the sides of the two springs 2 that are far away from each other are fixedly connected to the two fixed shells respectively.

[0016] The present invention has the following beneficial effects:

[0017] (1) The present invention sets a clamping mechanism. When the gear rotates, the rack on the fixed plate 2 will slide upward, and when the rack slides, it will slide with the hinge rod 1. At this time, the hinge rod 2 on the hinge rod 1 will cooperate. At this time, the hinge block on the half gear will be pushed outward by the hinge rod 2. At this time, the hinge block will rotate on the rotating shaft 1 with the half gear. At this time, through the rotation of the half gear, the clamp will move inward. As the rack continues to slide, the two clamps will contact the extended screen between them. At this time, the effect of clamping with the extended screen is achieved, so that the clamp will not shake or loosen when clamping the extended screen, thereby effectively protecting the extended screen and preventing it from being damaged or displaying abnormalities due to shaking during use.

[0018] (2) The present invention provides an anti-reversal mechanism. When installing the extended screen, the handle on the worm gear must be turned first. When the handle is turned, the worm wheel on the second shaft will rotate accordingly. As the worm wheel rotates, the second shaft will also rotate accordingly, and the gear will also rotate accordingly. Since the worm wheel and the worm gear have an anti-reversal effect, after the handle stops turning, the worm gear will not rotate again, thereby achieving a reversal effect, ensuring that the extended screen will not collide or squeeze with surrounding objects due to accidental reversal after installation. Not only does it protect the extended screen, but it also avoids damage to other surrounding equipment or objects that may be caused by the movement of the extended screen, thereby improving the safety of the entire use environment.

[0019] (3) The present invention sets a limit mechanism to eject the fixed plate 1. At this time, the fixed plate 1 is pressed. When the fixed plate 1 slides to the left, it will move with the fixed shell, the limit block and the spring 2. When the fixed plate 1 slides to the left, the limit block will first contact the semicircular block 2. After the limit block contacts the semicircular block 2, the semicircular block 2 will be led by the limit block to slide to the left on the slide bar. When the semicircular block 2 slides to the left, it will contact the slide plate. At this time, the semicircular block 2 will continue to squeeze the slide plate to the left. At this time, the slide plate will squeeze the spring 1. When the force reaches a certain level, the limit block will pass through the semicircular block 2. At this time, the push on the fixed plate 1 is released. At this time, the spring 1 will rebound the squeezed state. When the spring 1 extends to the right, the slide bar will slide accordingly. At this time, the limit block will be pushed by the slide plate, and the fixed plate 1 will slide to the right at the same time. At this time, the slider on the fixed plate 1 will slide in the slide groove, thereby achieving the effect of popping out the fixed plate 1. After installing the extended screen, the fixed plate 1 is pushed to the left. After pushing, the slider on the fixed plate 1 will also slide in the slide groove. With the continuous sliding, the limit block will first contact the semicircular block 1. At this time, continue to push the limit block and it will slide on the fixed shell. At this time, the limit block will squeeze the spring 2. When the pushing force is large enough, it will pass through the semicircular block 1. After passing through, the push on the fixed plate 1 can be released. At this time, the limit block on the fixed plate 1 and the semicircular block 1 on the slide rod will cooperate with the limiting effect on the fixed plate 1, thereby achieving the limiting effect on the fixed plate 1, so that when the extended screen is not needed or the device needs to be stored, the fixed plate 1 can be retracted and limited, making the device as a whole more compact and convenient to carry and store.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a partial structural schematic diagram of the clamping mechanism of the present invention;

[0023] Figure 2 It is a partial cross-sectional structural schematic diagram of the limiting mechanism of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 4 For the present invention Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0026] Figure 5 For the present invention Figure 1 Schematic diagram of the enlarged structure of B;

[0027] Figure 6 For the present invention Figure 1 Schematic diagram of the enlarged structure of C;

[0028] Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure of D in the middle;

[0029] Figure 8 For the present invention Figure 2 Schematic diagram of the enlarged structure of E.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] In the figure: 1. fixed box; 101. electronic product; 2. clamping mechanism; 211. fixed plate 2; 212. rack; 213. hinge rod 1; 214. fixture; 215. rotating shaft 1; 216. half gear; 217. hinge rod 2; 218. hinge block; 3. anti-reversal mechanism; 311. rotating shaft 2; 312. gear; 313. worm; 314. worm wheel; 315. handle; 4. limiting mechanism; 411. slide groove; 412. slider; 413. fixed plate 1; 414. slide rod; 415. slide plate; 416. spring 1; 417. semicircular block 1; 418. semicircular block 2; 419. fixed shell; 4110. limiting block; 4111. spring 2. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 8 As shown, the present invention is a portable protective case with an expanded screen, comprising a fixing box 1, on which a plurality of clamping mechanisms 2, two anti-reversal mechanisms 3 and two limiting mechanisms 4 are arranged, the front of the fixing box 1 is fixedly connected to an electronic product 101, the clamping mechanism 2 comprises a fixing plate 211 arranged in the fixing box 1, a rack 212 is slidably connected to the fixing plate 211, a hinge rod 213 is fixedly connected to the bottom of the rack 212, two clamps 214 are slidably connected to the fixing plate 211, and the fixing plate 211 is fixedly connected to the hinge rod 1 There are two rotating shafts 215 fixedly connected, and the outer walls of the two rotating shafts 215 are rotatably connected with half gears 216. The left and right sides of the hinged rod 213 are hingedly provided with hinged rods 217. The outer walls of the two half gears 216 are fixedly connected with hinge blocks 218. The two hinged rods 217 are hinged to the two hinge blocks 218 respectively. By setting the clamping mechanism 2, the clamp will not shake or loosen when clamping the extended screen, thereby effectively protecting the extended screen and preventing it from being damaged or displaying abnormalities due to shaking during use.

[0034] A worm 313 is rotatably connected to the fixed plate 211, a worm wheel 314 is fixedly connected to the outer wall of the rotating shaft 311, the worm 313 is meshed with the worm wheel 314, and a handle 315 is fixedly connected to the right side of the worm 313. By providing an anti-reversal mechanism 3, it is ensured that the extended screen will not collide or be squeezed with surrounding objects due to accidental reversal after installation, which not only protects the extended screen, but also avoids damage to other surrounding equipment or objects that may be caused by the movement of the extended screen, thereby improving the safety of the entire use environment.

[0035] The top of the slider 412 is fixedly connected with a fixing plate 1 413, and the fixing plate 1 413 is fixedly connected with the fixing plate 211. The inner wall of the fixing box 1 is fixedly connected with a sliding rod 414, and the outer wall of the sliding rod 414 is slidably connected with a sliding plate 415. The outer wall of the sliding rod 414 is sleeved with a spring 1 416, and the right side of the spring 1 416 is fixedly connected with the sliding plate 415, and the left side of the spring 1 416 is fixedly connected with the fixing box 1. The right side of the sliding rod 414 is fixedly connected with a semicircular block 1 417, and the outer wall of the sliding rod 414 is slidably connected with a semicircular block 2 418, and the semicircular block 2 418 is in contact with the semicircular block 1 417. The left side of the fixed plate 1 413 is fixedly connected to two fixed shells 419, the inner walls of the two fixed shells 419 are slidably connected to the limiting blocks 4110, and the two fixed shells 419 are provided with springs 2 4111, the sides of the two springs 2 4111 close to each other are fixedly connected to the two limiting blocks 4110, and the sides of the two springs 2 4111 away from each other are fixedly connected to the two fixed shells 419. By setting the limiting mechanism 4, when the extended screen is not needed or the device needs to be stored, the fixed plate 1 can be retracted and limited, making the device as a whole more compact and convenient to carry and store.

[0036] When in use, first place the device in the corresponding position, then pop out the fixing plate 1 413, then press the fixing plate 1 413, when the fixing plate 1 413 slides to the left, it will move with the fixing shell 419, the limiting block 4110 and the spring 2 4111, when the fixing plate 1 413 slides to the left, the limiting block 4110 will first contact the semicircular block 2 418, after the limiting block 4110 contacts the semicircular block 2 418, the semicircular block 2 418 will be brought by the limiting block 4110 to slide to the left on the slide bar 414, when the semicircular block 2 418 slides to the left, it will contact the slide plate 415, at this time the semicircular block 2 418 will continue to squeeze the slide plate 415 to the left, at this time the slide plate 415 will squeeze the spring 1 416, When the force reaches the rear limit block 4110, it will pass through the semicircular block 2 418. At this time, the push on the fixed plate 1 413 is released, and the spring 1 416 will rebound the squeezed force. When the spring 1 416 extends to the right, the slide plate 415 will slide on the slide bar 414. At this time, the limit block 4110 will be pushed by the slide plate 415, and the fixed plate 1 413 will slide to the right at the same time. At this time, the slider 412 on the fixed plate 1 413 will slide in the slide groove 411, thereby achieving the effect of popping out the fixed plate 1 413. After the expansion screen is installed, the fixed plate 1 413 is pushed to the left. After the push, the slider 412 on the fixed plate 1 413 will also slide in the slide groove 411. The subsequent sliding limit block 4110 will first contact the semicircular block 1 417. At this time, continuing to push the limit block 4110 will slide on the fixed shell 419. At this time, the limit block 4110 will squeeze the spring 2 4111. When the pushing force is large enough, it will pass through the semicircular block 1 417. When it passes, the push on the fixed plate 1 413 can be released. At this time, the limit block 4110 on the fixed plate 1 413 and the semicircular block 1 417 on the sliding rod 414 will cooperate with the limiting effect on the fixed plate 1 413, thereby achieving the limiting effect on the fixed plate 1 413. When installing the extended screen, you need to first turn the handle 315 on the worm 313. When the handle 315 is rotated, the worm wheel 314 on the rotating shaft 2 311 will rotate accordingly. The rotating shaft 211 of the worm gear 314 will also rotate accordingly, and the gear 312 will also rotate accordingly at this time. Because the worm gear 314 and the worm 313 have an anti-reverse effect, after the handle 315 stops rotating, the worm 313 will not rotate again, thereby achieving a reverse effect. When the gear 312 rotates, the rack 212 on the fixed plate 211 will slide upward, and when the rack 212 slides, it will slide with the hinge rod 1 213. At this time, the hinge rod 217 on the hinge rod 1 213 will cooperate. At this time, the hinge block 218 on the half gear 216 will be pushed outward by the hinge rod 217. At this time, the hinge block 218 will rotate with the half gear 216 on the rotating shaft 1 215.At this time, through the rotation of the half gear 216, the clamps 214 will move inwards, and as the rack 212 continues to slide, the two clamps 214 will contact the expansion screen between them, and the effect of clamping with the expansion screen is achieved.

[0037] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A portable protective case with an extended screen, characterized in that: It comprises a fixing box (1), on which a plurality of clamping mechanisms (2), two anti-reversal mechanisms (3) and two limiting mechanisms (4) are arranged; The front side of the fixing box (1) is fixedly connected to an electronic product (101); the clamping mechanism (2) comprises a second fixing plate (211) arranged in the fixing box (1); a rack (212) is slidably connected to the second fixing plate (211); the anti-reversal mechanism (3) comprises a second rotating shaft (311) rotatably connected to the second fixing plate (211); the second rotating shaft (311) passes through the second fixing plate (211); two gears (312) are fixedly connected to the outer wall of the second rotating shaft (311); the two gears (312) are respectively hinged to two corresponding racks (212); the limiting mechanism (4) comprises a sliding groove (411) provided on the electronic product (101); a slider (412) is slidably connected in the sliding groove (411).

2. The portable protective case with an extended screen according to claim 1, characterized in that: The bottom of the rack (212) is fixedly connected to a hinge rod 1 (213), and the fixing plate 2 (211) is slidably connected to two clamps (214).

3. The portable protective case with an extended screen according to claim 2, characterized in that: The fixing plate 2 (211) is fixedly connected to two rotating shafts 1 (215), and the outer walls of the two rotating shafts 1 (215) are rotatably connected to half gears (216).

4. The portable protective case with an extended screen according to claim 3, characterized in that: The left and right sides of the hinged rod one (213) are both hingedly provided with hinged rods two (217), the outer walls of the two half gears (216) are fixedly connected with hinge blocks (218), and the two hinged rods two (217) are respectively hinged with the two hinge blocks (218).

5. The portable protective case with an extended screen according to claim 4, characterized in that: A worm (313) is rotatably connected to the second fixing plate (211), a worm wheel (314) is fixedly connected to the outer wall of the second rotating shaft (311), the worm (313) is meshed with the worm wheel (314), and a handle (315) is fixedly connected to the right side of the worm (313).

6. The portable protective case with an extended screen according to claim 5, characterized in that: The top of the sliding block (412) is fixedly connected to a fixing plate 1 (413), the fixing plate 1 (413) is fixedly connected to a fixing plate 2 (211), and the inner wall of the fixing box (1) is fixedly connected to a sliding rod (414).

7. The portable protective case with an extended screen according to claim 6, characterized in that: The outer wall of the slide bar (414) is slidably connected with a slide plate (415), and the outer wall of the slide bar (414) is sleeved with a spring 1 (416), the right side of the spring 1 (416) is fixedly connected to the slide plate (415), and the left side of the spring 1 (416) is fixedly connected to the fixed box (1).

8. The portable protective case with an extended screen according to claim 7, characterized in that: The right side of the sliding rod (414) is fixedly connected to a semicircular block 1 (417), the outer wall of the sliding rod (414) is slidably connected to a semicircular block 2 (418), the semicircular block 2 (418) is in contact with the semicircular block 1 (417), and the left side of the fixed plate 1 (413) is fixedly connected to two fixed shells (419).

9. The portable protective case with an extended screen according to claim 8, characterized in that: The inner walls of the two fixed shells (419) are slidably connected to the limit blocks (4110), and the two fixed shells (419) are each provided with a spring 2 (4111). The sides of the two springs 2 (4111) that are close to each other are respectively fixedly connected to the two limit blocks (4110), and the sides of the two springs 2 (4111) that are far away from each other are respectively fixedly connected to the two fixed shells (419).

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